DE60219046D1 - Die papier- bzw. halbstoffherstellung begleitendes verfahren zur steuerung des chemischen zustands des halbstoff- und kreislaufwassersystems - Google Patents
Die papier- bzw. halbstoffherstellung begleitendes verfahren zur steuerung des chemischen zustands des halbstoff- und kreislaufwassersystemsInfo
- Publication number
- DE60219046D1 DE60219046D1 DE60219046T DE60219046T DE60219046D1 DE 60219046 D1 DE60219046 D1 DE 60219046D1 DE 60219046 T DE60219046 T DE 60219046T DE 60219046 T DE60219046 T DE 60219046T DE 60219046 D1 DE60219046 D1 DE 60219046D1
- Authority
- DE
- Germany
- Prior art keywords
- semi
- paper
- pulp
- water system
- bzw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
- D21G9/0018—Paper-making control systems controlling the stock preparation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/78—Controlling or regulating not limited to any particular process or apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20015022A FI20015022A0 (fi) | 2001-08-21 | 2001-08-21 | Menetelmä paperin- tai kartonginvalmistuksessa |
FI20015022 | 2001-08-21 | ||
FI20025023A FI20025023A (fi) | 2001-08-21 | 2002-05-17 | Menetelmä paperi- tai selluprosessissa massa- ja kiertovesijärjestelmän kemiallisen tilan hallitsemiseksi |
FI20025023 | 2002-05-17 | ||
PCT/FI2002/000684 WO2003018908A1 (en) | 2001-08-21 | 2002-08-21 | Method in a paper or pulp process to control the chemical state of the pulp and circulation water system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60219046D1 true DE60219046D1 (de) | 2007-05-03 |
DE60219046T2 DE60219046T2 (de) | 2007-12-13 |
Family
ID=26161249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60219046T Expired - Lifetime DE60219046T2 (de) | 2001-08-21 | 2002-08-21 | Die papier- bzw. halbstoffherstellung begleitendes verfahren zur steuerung des chemischen zustands des halbstoff- und kreislaufwassersystems |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040238140A1 (de) |
EP (1) | EP1430178B1 (de) |
AT (1) | ATE357556T1 (de) |
CA (1) | CA2456538C (de) |
DE (1) | DE60219046T2 (de) |
FI (1) | FI20025023A (de) |
WO (1) | WO2003018908A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20051096A (fi) * | 2005-10-31 | 2007-05-01 | Savcor Process Oy | Menetelmä paperikoneen, kartonkikoneen tai muun vastaavan rainanmuodostuskoneen märässä päässä |
FI123392B (fi) * | 2008-02-22 | 2013-03-28 | Upm Kymmene Oyj | Menetelmä kalsiumkarbonaatin saostamiseksi kuiturainaprosessin yhteydessä ja kuiturainakoneen lähestymisjärjestelmä |
WO2011149797A1 (en) * | 2010-05-22 | 2011-12-01 | Eltron Research & Development Inc. | Paper dewatering |
DE102010041052A1 (de) * | 2010-09-20 | 2012-03-22 | Voith Patent Gmbh | Verfahren zum Regeln der Formation einer Faserstoffbahn |
DE102011083709A1 (de) * | 2011-09-29 | 2013-04-04 | Voith Patent Gmbh | Betriebsverfahren für eine Stoffaufbereitung |
EP3508635A4 (de) * | 2016-08-31 | 2020-05-20 | Seiko Epson Corporation | Bahnherstellungsvorrichtung und steuerungsverfahren der bahnherstellungsvorrichtung |
JP7211022B2 (ja) * | 2018-11-07 | 2023-01-24 | セイコーエプソン株式会社 | ウェブ製造装置およびシート製造装置 |
US20220026343A1 (en) * | 2018-11-27 | 2022-01-27 | Kemira Oyj | Method for estimating the vapor phase corrosion load |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3876497A (en) * | 1971-11-23 | 1975-04-08 | Sterling Drug Inc | Paper mill waste sludge oxidation and product recovery |
DE2746179A1 (de) * | 1977-10-14 | 1979-04-19 | Bayer Ag | Verfahren zur messung des ladungszustandes von suspensionen und zur steuerung der zugabe von hilfsmitteln zu suspensionen |
SE442414B (sv) * | 1981-09-22 | 1985-12-23 | Holmens Bruk Ab | Sett att minska eller inhibera morkfergningen av massa eller papper i bakvattensystem |
EP0079726B2 (de) * | 1981-11-09 | 1996-10-30 | The Wiggins Teape Group Limited | Apparat zur Bestimmung eines elektrischen Merkmals einer Faser-Dispersion |
US4752356A (en) * | 1985-10-18 | 1988-06-21 | Miami University | Papermaking process |
US6072309A (en) * | 1996-12-13 | 2000-06-06 | Honeywell-Measurex Corporation, Inc. | Paper stock zeta potential measurement and control |
US5936151A (en) * | 1997-12-22 | 1999-08-10 | International Paper Company | Method and apparatus for measuring an electrical property of papermaking furnish |
US6176974B1 (en) * | 1997-12-22 | 2001-01-23 | International Paper Company | Method for determining electrokinetic properties of papermaking furnish |
US6086716A (en) * | 1998-05-11 | 2000-07-11 | Honeywell-Measurex Corporation | Wet end control for papermaking machine |
FI113089B (fi) * | 1999-10-06 | 2004-02-27 | Liqum Oy | Menetelmä paperinvalmistusprosessin analysoimiseksi ja sähkökemiallinen anturi nesteen analysoimiseksi |
CA2404968C (en) * | 2000-04-05 | 2011-08-30 | Liqum Oy | Method and system for monitoring and analyzing a paper manufacturing process |
US7056419B2 (en) * | 2002-09-30 | 2006-06-06 | American Air Liquide, Inc. | Methods for modifying electrical properties of papermaking compositions using carbon dioxide |
FI20021901A0 (fi) * | 2002-10-24 | 2002-10-24 | Liqum Oy | Menetelmä prosessin valvomiseksi |
-
2002
- 2002-05-17 FI FI20025023A patent/FI20025023A/fi unknown
- 2002-08-21 AT AT02753105T patent/ATE357556T1/de active
- 2002-08-21 DE DE60219046T patent/DE60219046T2/de not_active Expired - Lifetime
- 2002-08-21 CA CA2456538A patent/CA2456538C/en not_active Expired - Fee Related
- 2002-08-21 US US10/487,304 patent/US20040238140A1/en not_active Abandoned
- 2002-08-21 EP EP02753105A patent/EP1430178B1/de not_active Expired - Lifetime
- 2002-08-21 WO PCT/FI2002/000684 patent/WO2003018908A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
US20040238140A1 (en) | 2004-12-02 |
DE60219046T2 (de) | 2007-12-13 |
EP1430178B1 (de) | 2007-03-21 |
FI20025023A0 (fi) | 2002-05-17 |
ATE357556T1 (de) | 2007-04-15 |
WO2003018908A1 (en) | 2003-03-06 |
FI20025023A (fi) | 2003-02-22 |
EP1430178A1 (de) | 2004-06-23 |
CA2456538C (en) | 2010-04-27 |
CA2456538A1 (en) | 2003-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |